This
is a classic divider of frequency via two. It is achieved with a classic circuit
T-flipFlop, round IC1 [ 4011 ]. In the circuit, the frequency of network, after are limit
the negative half-s period of sine wave and transform in square wave, are divided via two.
Thus for frequency50 HZ, we will take in the exit pulse of frequency 25 HZ. The supply of
circuit it is 5V and does not need high benefit in current.

Part
List

R1= 10Kohm

R8= 47 ohm

IC1=4011

R2= 100Kohm

R9-10-11= 100Kohm

T1= 110/220Vac //8V 100mA

R3= 680 ohm

C1= 1000uF 25V

D1-2= 1N4007

R4= 1Mohm

C2-3= 100nF 100V ceramic

D3= 5.1V 0.5W Zener

R5-6-7= 100Kohm

C4-5= 100pF ceramic

D4-5= 1N4148

]

Reprinted Url Of This Article:http://users.otenet.gr/~athsam/frequency_divider.htm